The document discusses a main memory caching database solution called CSQL for telecom applications that require high performance. CSQL offers sub-10 microsecond response times, high concurrency and throughput of 100k selects/sec and 50k updates/sec. It has a small memory footprint of less than 2MB. CSQL can be used as a standalone main memory database or to cache tables from existing databases like Oracle and DB2 to improve performance. It supports high availability, replication, load balancing and transparent access to cached and backend tables. Benchmark results show it can be over 100 times faster than leading disk-based databases.